Contribution to the knowledge on Typhlocybinae (Hemiptera, Cicadellidae) in Italy with description of two new species

Abstract

Variability of populations of the brachypterous Erythria taxa in the northern Apennines and Maritime Alps is investigated, figured and discussed in the context of possible hybridization between E. ferrarii (Puton) and E. alpina (Vidano). Kybos albitalicus sp. nov., a species closely related to K. virgator (Ribaut) and living together with this species on Salix alba (L.), and Arboridia itangulata sp. nov., with clear affinity to A. expansa Zachvatkin, are described as new. Several Tamaricella populations from Italy including Sardinia and Sicily, collected on Frankenia laevis L. and Tamarix spp. and provisionally classified as T. cf. ribauti (Zachvatkin) are compared in genital morphology, measurements and coloration. Taxonomic problems concerning T. ribauti and related species are discussed. The aedeagus and pygofer appendage of Tamaricella gr. cypria (Ribaut) from Pantelleria are figured.